wxGUI/dbm: fix encoding strings

	   (merge https://trac.osgeo.org/grass/changeset/39586 from devbr6)


git-svn-id: https://svn.osgeo.org/grass/grass/trunk@39587 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/dbm.py

@@ -33,6 +33,7 @@ import os
 import locale
 import tempfile
 import copy
+import types
 
 ### i18N
 import gettext
@@ -289,7 +290,7 @@ class VirtualAttributeList(wx.ListCtrl,
         j = 0
         
         for value in record.split('|'):
-            if self.columns[columns[j]]['ctype'] != type(str):
+            if self.columns[columns[j]]['ctype'] != types.StringType:
                 try:
                     ### casting disabled (2009/03)
                     ### self.itemDataMap[i].append(self.columns[columns[j]]['ctype'](value))

gui/wxpython/wxgui.py

@@ -23,7 +23,6 @@ import sys
 import os
 import time
 import traceback
-import types
 import re
 import string
 import getopt